Envelop.



PATENTBD JAN. 3, 1905.

L. REINHOLD.

ENVELOP.

APPLICATION FILED MAY 4, 1903.

2 SHEETS-SHEET l.

@Dvi/E11 emes PATENTED JAN. 3, 1905.

L. REINHLD.

ENVELOP.

APPLICATION FILED MAY 4, 1903.

2 SHEETS-SHEET 2.

@Wfl/bm e on ce 1atented January 3, 1905.

PATENT OEETcE.

LOUISE REINHOLD, OF-SAN FRANCISCO, CALIFORNIA.

ENVELOP SPECIFICATION forming part of' Letters Patent No. 779,135, dated January 3, 1905.

Application filed May 4, 1903. Serial No. 155,622.

To @ZZ whom it may concern:

Be it known that I, LOUISE REINHOLD, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented a new and useful Envelop, of which the following is a specificaextract the contents thereof with little difli- 4culty and without leaving any trace upon such envelop showing that the same has been tam- Vpered with.

impossibility.

The object of the present invention is to provide a structure formed from a single blank and having an arrangement of parts, together with peculiarly-constructed sealed joints, that will preclude the unauthorized extraction of the contents without practically destroying the envelop. Two ways are generally employed in purloining such matters. One is the unsealing and resealing of the joints. In the present instance this will be practically an The other method is to remove the contents through one of the corners. In

'the novel structure hereinafter set forth the lcorners are reinforced and protected, so as to prohibit the ingress of any instrument for the above purpose.

The preferred embodiment of the invention is illustrated in the accompanying drawings, wherein- Figure 1 is a plan view of. the blank. Fig. 2 is also a plan View showing' said blank partially folded. Fig. 3 is a sectional view on the line 3 3 of Fig. 2. Fig. 11 is a plan view showing the blank folded to a greater extent. Fig. 5 is a horizontal sectional view taken on vthe line 5 5 of Fig. 4. Fig. 6 is a plan view showing the rear pocket-wall broken away and one of the pocket-tabs folded. Fig. 7 is a view similar to Fig. '6, but illustrating the other pocket-tab folded. Fig. 8 is a vertical sectional view through Fig. 7; and Fig. 9 is a sectional view taken on the line 9 9 of Fig. 7, but showing the outer flaps folded and illustrating more clearly the arrangement of the corner-reinforcing lips.

Similar reference-numerals indicate correshown in Figs. 2 and 3.

sponding parts in all the figures of the drawings.

It is believed to be best in the present instance to start with the blank and set forth step by step the method of folding and securing the various elements, at the same time pointing out the usefulness and advantage for' the different particular arrangements employed. y

Referring, therefore, to Fig. 1, it will be noted that the blank is formed from a single sheet and comprises a rectangular front wall 10, having an upper rear-wall flap 11 and a lower rear-wall iiap 12. The front wall 10 carries at its ends pocket rear-wall sections 13 and 14. These sections are each provided with a transverse slot 15 and a tongue 16. On their upper edges are located pocket-sealing tabsections 17, which are connected with the upper wall-Hap by corner-reinforcing lips 18, having bellows folds. Connected with the lower edges of the pocket rear-wall sections 13 and 14 are pocket front-wall sections 19 and 20, which are in turn connected with the lower rear-wall flap 12 by corner-reinforcing lips 21. The lower portion of the section 19 is enlarged, having a beveled edge 22 and carrying at its lower end a pocket-sealing tab 23, that has a projecting tongue 24. The pocket front-wall section 2O has its lower margin subdivided into'a plurality of marginal tongues 25. The heavier stippled work represents adhesive material placed on the adjacent face of the blank, while the lighter stippling indicates adhesive material arranged on the opposite face.

The blank is creased as indicated in dotted lines in Fig. 1. The pocket front-wall section 19 is then folded upon the pocket rearwall section 13, while the reinforcing-lip 21, connected to said section 19, is secured to the rear face of the front wall. At the same time the sections'13 and 19 are folded over said wall. This brings the parts into the relation Similar folds are then made with the sections 14 and 2Ov This brings the beveled edge 22 of the section 19 into overlapping relation with the marginal tongues 25 of the sections 20. Said tongues are thereupon placed alternately upon opposite sides of the edge 22 and fastened thereto,

as shown in the broken-away portion of Fig. 4. This arrangement, it will be apparent, forms an extremely secure joint, which cannot vbe readily unsealed, said joint being furthermore covered by the front wall 10. The outer margins of the sections 13 and 14 are also now disposed in overlapping relation and the tongues 16 thereof are passed through the slots 15, as shown in Fig. 4. These tongues are glued to the adjacent sections, while adhesive material secures the overlapping margins together, at the same time fastening the pocketsealing tab-sections 17 together. As a result of this arrangement an inner pocket is formed having an open mouth at its upper end, together with sealing-tabs located on opposite sides of said mouth. This pocket is designed to receive the contents of the envelop, and after such contents have been placed therein the tab 23 is folded within the pocket and is secured to the rear wall thereof, the tongue thus being fastened directly upon the joint of said rear wall and strengthening the same to a very considerable degree. The tab formed by the sections 17 is afterward folded over the tab 23 and the mouth of the pocket, being glued against the outer face of the front pocket-wall. Thus the pocket is itself completely sealed, and upon the folding of the sections 17 over the mouth thereof the cornerreinforcing lips 18 are carried to the position shown in Fig. 7. If now the lower. and upper flaps 11 and 12 are secured over the pocket, it will be apparent that said flaps and front wall constitute a casing which completely incloses the pocket, covering the joints thereof, while at the same time the structure as a Whole has the appearance of an ordinary envelop. When said flaps 11 and 12 are folded', the reinforcing lips 18 and 21 are simultaneously folded over the corners of the pocket` and thus there are no openings left at these points for the insertion of an instrument. It will of course be understood that the lower ilap 12 may be sealed upon the rear pocket- Wall before the pocket is sealed and the envelop when placed upon the market need have only three upper flaps or tabs unfastened. It will be clearly understood that there is very little chance of an unauthorized person gaining access to or purloining the contents of this envelop Without practically destroying the same. In the irst place the contents are incased in double walls and every joint is protccted and peculiarly sealed.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. In an envelop,the combination with outer walls forming a casing having a mouth, of inner walls located within the casing and forming an inner pocket having a mouth that is accessible through the mouth of the casing, and

to close the pocket-mouth, and separate means for closing the mouth of the casing.

3. In an envelop,the combination with outer walls forming a casing having a mouth, of separate inner walls located within the casing forming an inner pocket having a mouth that is accessible through the mouth of the casing, a tab carried by one of the inner walls for closing the mouth of the inner pocket, and a flap carried by one of the outer walls for closing the mouth of the casing and covering the pocket.

4. The combination with outer walls forming a casing, of walls located Within the casing forming between them an inner pocket having a mouth, oppositely-folding tabs carried by the inner walls for closing the mouth of the pocket, and a flap carried by one of the outer walls and foldable over the inner tabs.

5. In an envelop, a pocket having a mouth and comprising walls, one of which is composed of sections having overlapped margins, each margin being provided with a slot and a projecting tongue, the tongue of one section being passed through the slot of the other and secured to said other section, a tab carried by the other Wall, said tab being folded within the pocket, and constitutinga closure for the mouth thereof, and means for securing the tab against the overlapping margms.

6. In an envelop, the combination with a front wall, of separate pocket-Walls located in rear of the front wall, and reinforcing-.lips secured to the inner face of the. front wall and folded about the coacting edges and over the outer faces of the pocket-Walls.

7. In an envelop,the combination with front and rear casing-walls, of separate pocketwalls located between the casing-walls, and reinforcing-lips securedfto the casing-walls against the outer faces thereof between the casing-walls and folded over the corners of the pocket-walls.

8. In an envelop, the combination with a front casing-wall Vhaving upper and lower IOO flaps constituting a rear casing-wall, of folded pocket-Wall sections carried by the side edges of the front casing-Walls and secured together in rear of the same forming a pocket having an open mouth, and tabs carried by the edges of the pocket-walls and arranged to be secured in opposite directions over the mouth of the pocket and beneath the upper casing-flap.

9. An envelop, comprising a front wall having flaps at its upper and lower edges, pocketwall sections connected to the ends of the front wall and secured together in rear of the same, and other pocket-wall sections connected to the iirst-mentioned pocket-wall seotions and secured together in rear of the front wall, said pocket-walls forming therebetween a pocket, said iiaps of the front wall being foldable against the rear face of the rear pocketwall.

10. An envelop, comprising a front wallsection, rear pocket-wall sections conected to the ends of the front wall and having overlapped interlocked margins secured together, front pocket-wall sectionsattached to the lower edges of said rear pocket-wall sections and-having overlapped interlocled margins forming between them an inner pocket havingy a mouth, means for closing the mouth of the inner pocket, means for closing the mouth of the casing, and reinforcements carried by said latter closing means and covering the adjacent corners of the inner pocket.

In testimony that I claim the foregoing as my own I have hereto aiiiXed my signature in the presence of two witnesses.

LOUISE REINHOLD.

Witnesses:

B. STRUVEN, E. Louis WENK. 

